A popular game fish mistaken by scientists for a dog snapper is actually a new species discovered among the reefs of the Abrolhos region of the South Atlantic Ocean.
The international science journal Zootaxa recently published the discovery of Lutjanus alexandrei, a new snapper species that belongs to the Lutjanidae family, by researchers Rodrigo Moura of Conservation International (CI) and Kenyon Lindeman of Environmental Defense. The study published in Zootaxa provides a revised key for identifying all Lutjanus species in the western Atlantic, along with evidence that the new species completes its life cycle in different but interdependent marine habitats, such as coral reefs and mangroves.
“This discovery that a large, popular fish is a species new to science shows how little we know about the oceans that surround us,” Moura said. “It looks like other snapper species found in the Caribbean and eastern United States, as well as the dog snapper caught by fishermen here in Brazil, but it is a distinct species with different markings and color.”
Twelve species of the family Lutjanidae, including the new discovery, are now identified in the western Atlantic Ocean. They include Lutjanus griseus and Lutjanus apodus, two species restricted to the Caribbean and eastern coast of the United States but previously believed to occur in Brazilian waters until the discovery of Lutjanus alexandrei.
The new species also has been mistaken for Lutjanus jocu, known as the dog snapper, a popular commercial fish in Brazil. According to Moura and Lindeman, the discovery shows the need for more comprehensive studies of Brazil’s reef fish populations, particularly in the northeastern region that includes the Abrolhos area, which contains the nation’s largest concentration of coral reefs.
The new species is named for 18th-century naturalist Alexandre Rodrigues Ferreira, whose extensive work in the Brazilian interior remains largely unknown. Moura and Lindeman spent five years observing Lutjanus alexandrei to analyze its characteristics and determine the distinct features.
It occurs from the state of Maranhão to the southern coast of the state of Bahia, and its habitats include coral reefs, rocky shores, coastal lagoons with brackish water, mangroves, and other shallow habitats. Juveniles requiring more food and protection live in mangroves, then migrate to reef habitat and deeper areas as adults.
“Several species spend some of their lives in these different yet connected habitats,” Lindeman said. “That’s why it’s so important to develop integrated conservation strategies that include mangroves, deep reefs, and other interdependent ecosystems.”
Some of the research was conducted under the Marine Management Areas Science program, a CI initiative intended to improve marine biodiversity conservation and the welfare of local communities. In Brazil, the MMAS program was established in the Abrolhos region in October 2005.
Isabela Santos | EurekAlert!
Scientists team up on study to save endangered African penguins
16.11.2017 | Florida Atlantic University
Climate change: Urban trees are growing faster worldwide
13.11.2017 | Technische Universität München
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
17.11.2017 | Physics and Astronomy
17.11.2017 | Health and Medicine
17.11.2017 | Studies and Analyses